#665E6E#665E6E

#665E6E is a mid, muted grey. Relative luminance 0.120; OKLCH L 49.5% C 0.027 H 307.9°. Best body text is #FFFFFF at 6.19:1 contrast (WCAG AA passes).

Color values

HEX#665E6E
RGBrgb(102, 94, 110)
HSLhsl(270, 8%, 40%)
HSVhsv(270, 15%, 43%)
CMYKcmyk(7.3%, 14.5%, 0%, 56.9%)
CIE-LABlab(41.15, 6.56, -7.90)
CIE-LCHlch(41.15, 10.27, 309.70°)
OKLaboklab(49.51% 0.0165 -0.0213)
OKLCHoklch(49.51% 0.027 307.9)
XYZxyz(12.2962, 11.9560, 16.4088)
Luminance0.1196 (WCAG relative)
Temperatureneutral
Familygrey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#665E6E #666E5E
analogous
#5E5E6E #665E6E #6E5E6E
triadic
#665E6E #6E665E #5E6E66
tetradic
#665E6E #6E5E5E #666E5E #5E6E6E
square
#665E6E #6E5E5E #666E5E #5E6E6E
split-complementary
#665E6E #6E6E5E #5E6E5E
monochromatic
#29262C #47424D #665E6E #857B8E #A39CAA

Accessibility & contrast

On white

6.19
#665E6E on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.39
#665E6E on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665E6E
6.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##665E6E#FFFFFF#000000##FFFFFF
##665E6E1.006.193.396.19
#FFFFFF6.191.0021.001.00
#0000003.3921.001.0021.00
##FFFFFF6.191.0021.001.00

Color blindness preview

Protanopia (red-blind)
#5C616F
Deuteranopia (green-blind)
#5D616D
Tritanopia (blue-blind)
#656063
Achromatopsia (no color)
#616161

Design tokens & code

CSS
--color: #665e6e;
/* rgb */ color: rgb(102, 94, 110);
/* oklch */ color: oklch(49.5% 0.027 307.9);
Tailwind
colors: {
  custom: {
    50: '#918b97',
    500: '#665e6e',
    950: '#000000',
  },
}
SCSS
$custom: #665e6e;
$custom-light: #918b97;
$custom-dark: #000000;
JSON
{
  "hex": "#665e6e",
  "rgb": {
    "r": 102,
    "g": 94,
    "b": 110
  },
  "hsl": {
    "h": 270,
    "s": 7.843,
    "l": 40
  },
  "oklch": {
    "l": 0.49512,
    "c": 0.02692,
    "h": 307.9
  },
  "luminance": 0.11956
}

Semantic roles & 50–950 ramp

primary
#665E6E
secondary
#949A8E
accent
#B17794
background
#F8F8F9
surface
#F0F0F2
border
#CBCBCC
text
#0C0C0D
muted
#7D7D7E

Preview Lab

Preview with #665E6E

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →

#665E6E Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva